Kate Poirier, University of California - BerkeleyString topology studies the algebraic topology of the free loop space of a closed,oriented manifold. Previous treatments of string topology describe algebraic structures on the homology of the free loop space of the manifold and operations parameterized by a noncompact space of graphs. One perspective is that these structures should be a shadow of a richer structure at the chain level and that the space parametrizing the operations should be compactied. In this talk, we describe the compact space of graphs giving string topology operations on the singular chains of the free loop space which induce known operations on homology. This is joint work with Nathaniel Rounds.